libcamera: include/libcamera/internal/ipa_manager.h Source File

libcamera v0.5.1 Supporting cameras in Linux since 2019

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ipa_manager.h
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1/* SPDX-License-Identifier: LGPL-2.1-or-later */
2/*
3 * Copyright (C) 2019, Google Inc.
4 *
5 * Image Processing Algorithm module manager
6 */
7
8#pragma once
9
10#include <memory>
11#include <stdint.h>
12#include <vector>
13
14#include <libcamera/base/log.h>
15
16#include <libcamera/ipa/ipa_interface.h>
17#include <libcamera/ipa/ipa_module_info.h>
18
19#include "libcamera/internal/camera_manager.h"
20#include "libcamera/internal/ipa_module.h"
21#include "libcamera/internal/pipeline_handler.h"
22#include "libcamera/internal/pub_key.h"
23
24namespace libcamera {
25
26 LOG_DECLARE_CATEGORY(IPAManager)
27
28class IPAManager
29{
30public:
31 IPAManager();
32 ~IPAManager();
33
34 template<typename T>
35 static std::unique_ptr<T> createIPA(PipelineHandler *pipe,
36 uint32_t minVersion,
37 uint32_t maxVersion)
38 {
39 CameraManager *cm = pipe->cameraManager();
40 IPAManager *self = cm->_d()->ipaManager();
41 IPAModule *m = self->module(pipe, minVersion, maxVersion);
42 if (!m)
43 return nullptr;
44
45 std::unique_ptr<T> proxy = std::make_unique<T>(m, !self->isSignatureValid(m));
46 if (!proxy->isValid()) {
47 LOG(IPAManager, Error) << "Failed to load proxy";
48 return nullptr;
49 }
50
51 return proxy;
52 }
53
54#if HAVE_IPA_PUBKEY
55 static const PubKey &pubKey()
56 {
57 return pubKey_;
58 }
59#endif
60
61private:
62 void parseDir(const char *libDir, unsigned int maxDepth,
63 std::vector<std::string> &files);
64 unsigned int addDir(const char *libDir, unsigned int maxDepth = 0);
65
66 IPAModule *module(PipelineHandler *pipe, uint32_t minVersion,
67 uint32_t maxVersion);
68
69 bool isSignatureValid(IPAModule *ipa) const;
70
71 std::vector<std::unique_ptr<IPAModule>> modules_;
72
73#if HAVE_IPA_PUBKEY
74 static const uint8_t publicKeyData_[];
75 static const PubKey pubKey_;
76#endif
77};
78
79} /* namespace libcamera */
libcamera::CameraManager
Provide access and manage all cameras in the system.
Definition camera_manager.h:25
libcamera::Extensible::_d
const T * _d() const
Retrieve the private data instance.
Definition class.h:94
libcamera::IPAManager
Manager for IPA modules.
Definition ipa_manager.h:29
libcamera::IPAManager::createIPA
static std::unique_ptr< T > createIPA(PipelineHandler *pipe, uint32_t minVersion, uint32_t maxVersion)
Create an IPA proxy that matches a given pipeline handler.
Definition ipa_manager.h:35
libcamera::IPAManager::IPAManager
IPAManager()
Construct an IPAManager instance.
Definition ipa_manager.cpp:104
libcamera::IPAManager::pubKey
static const PubKey & pubKey()
Retrieve the IPA module signing public key.
Definition ipa_manager.h:55
libcamera::IPAModule
Wrapper around IPA module shared object.
Definition ipa_module.h:24
libcamera::PipelineHandler
Create and manage cameras based on a set of media devices.
Definition pipeline_handler.h:35
libcamera::PipelineHandler::cameraManager
CameraManager * cameraManager() const
Retrieve the CameraManager that this pipeline handler belongs to.
Definition pipeline_handler.h:71
libcamera::PubKey
Public key wrapper for signature verification.
Definition pub_key.h:23
camera_manager.h
Internal camera manager support.
ipa_interface.h
Image Processing Algorithm interface.
ipa_module.h
Image Processing Algorithm module.
ipa_module_info.h
Image Processing Algorithm module information.
log.h
Logging infrastructure.
LOG_DECLARE_CATEGORY
#define LOG_DECLARE_CATEGORY(name)
Declare a category of log messages.
Definition log.h:51
LOG
#define LOG(category, severity)
Log a message.
Definition log.h:123
libcamera::ipa
The IPA (Image Processing Algorithm) namespace.
Definition af.cpp:58
libcamera
Top-level libcamera namespace.
Definition backtrace.h:17
pipeline_handler.h
Create pipelines and cameras from a set of media devices.
pub_key.h
Public key signature verification.